nope, didn't work, steam wasn't running I made sure in fact I restarted. Steam isn't allowed to start on start-up
I renamed the file started steam and it just made another clientregistry.blob
Not sure if being on 64-bit matters but I am.
Update: Ok, well it looks like steam is back in business I tried it again after a couple hours minding my own business and it just started working again, It installed some updates and I had to sign in again but its working!
Thanks +rep